The size of Lynbrook is approximately 4.1 square kilometres. The population of Lynbrook in 2011 was 6,771 people. By 2016 the population was 8,531 showing a population growth of 26.0% in the area during that time. The predominant age group in Lynbrook is 0-9 years. Households in Lynbrook are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Lynbrook work in a professional occupation. In 2011, 84.3% of the homes in Lynbrook were owner-occupied compared with 80.5% in 2016. Currently the median sales price of houses in the area is $725,000.